What to expect

• Probably some damage to a few buildings and structures from lightning strikes
• There is a good chance driving conditions will be affected by spray, standing water and/or hail, leading to longer journey times by car and bus
• Delays to train services are possible
• Some short term loss of power and other services is likely

What should I do?

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Updated: 09:31 (UTC+1) on Wed 2 Aug 2023

Further details

Heavy showers and thunderstorms are expected during Wednesday. Where they do develop they could be slow-moving and persistent with as much as 20-25 mm of rain falling within an hour and possibly in excess of 40 mm in 2-3 hours in a few places. Lightning and hail will be additional hazards.

View full warning details and map view

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Reason for update

Warning updated to extend thunderstorm risk a little further north and south.

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Regions and local authorities affected

East Midlands

• Derby
• Derbyshire
• Leicester
• Leicestershire
• Lincolnshire
• Northamptonshire
• Nottingham
• Nottinghamshire
• Rutland

East of England

• Bedford
• Cambridgeshire
• Central Bedfordshire
• Essex
• Hertfordshire
• Luton
• Norfolk
• Peterborough
• Southend-on-Sea
• Suffolk
• Thurrock

London & South East England

• Bracknell Forest
• Brighton and Hove
• Buckinghamshire
• East Sussex
• Greater London
• Hampshire
• Kent
• Medway
• Milton Keynes
• Oxfordshire
• Reading
• Slough
• Surrey
• West Berkshire
• West Sussex
• Windsor and Maidenhead
• Wokingham

North West England

• Cheshire East
• Cheshire West and Chester
• Greater Manchester
• Halton
• Merseyside
• Warrington

South West England

• Bath and North East Somerset
• Bristol
• Gloucestershire
• North Somerset
• Somerset
• South Gloucestershire
• Swindon
• Wiltshire

Wales

• Blaenau Gwent
• Bridgend
• Caerphilly
• Cardiff
• Carmarthenshire
• Ceredigion
• Conwy
• Denbighshire
• Flintshire
• Gwynedd
• Merthyr Tydfil
• Monmouthshire
• Neath Port Talbot
• Newport
• Powys
• Rhondda Cynon Taf
• Swansea
• Torfaen
• Vale of Glamorgan
• Wrexham

West Midlands

• Herefordshire
• Shropshire
• Staffordshire
• Stoke-on-Trent
• Telford and Wrekin
• Warwickshire
• West Midlands Conurbation
• Worcestershire

Yorkshire & Humber

• South Yorkshire